Our study data is collected from SO, by identifying questions in SO labeled as one of the 75 IoT related tags. As we noted in Section REF , the 75 tags were previously used to learn IoT developer discussions in SO by Uddin et al. [1]}, who found that the most popular and most frequently discussed topics were related to the adoption of security measures in IoT devices (e.g., secure messaging). In addition, the same dataset was also used by Uddin [2]} to determine the prevalence of security-related discussions at the sentence level. Both studies show that the dataset contains diverse discussions about security for IoT. Note that not all the 75 IoT tags have explicit reference to any security measures, but we observed that many of the questions (and their answers) labeled as the tags contained security discussions. In this section, we offer quantitative evidence on the extent of security discussions in questions labeled as non-security tags as follows.
